SOLUTION: graph both equations in the same coordinates plane. Then estimate the solution to the nearest half unit. 2x+y=-2 2x-3y=15

Algebra ->  Trigonometry-basics -> SOLUTION: graph both equations in the same coordinates plane. Then estimate the solution to the nearest half unit. 2x+y=-2 2x-3y=15      Log On


   

Question 210797This question is from textbook algebra and trigonometry structure and method book 2
: graph both equations in the same coordinates plane. Then estimate the solution to the nearest half unit.
2x+y=-2
2x-3y=15 This question is from textbook algebra and trigonometry structure and method book 2

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
2x+y=-2
-(2x-3y=15) SUBTRACT
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4Y=-17
Y=-17/4 ANS.
2X-17/4=-2
2X=-2+17/4
2X=(-2*4+17)/4
2X=(-8+17)/4
2X=9/4
X=(9/4)/2
X=(9/4)(1/2)
X=9/8 ANS.
2(9/8)-3(-17/4)=15
9/4+51/4=15
60/4=15
15=15